Uncertainty of the electrode wear on-machine measurements in micro EDM milling

Valentinčič, Joško (author), Bissacco, Giuliano (author), Tristo, Gianluca (author)

On-machine measurements play an important role in micro EDM milling. The measured tool electrode wear and the wear compensation have a strong influence on machining accuracy since the wear compensation methods require periodic measurements of the wear. The measurement uncertainties of the linear and volumetric wear measurements by the Touch and the Laser method were examined and results are presented in this paper. It was found that the linear wear measurements can be effectively performed by the Touch method when larger tool electrode diameters are used and sufficient machining is performed between the two control intervals, whereas the volumetric wear should be measured by the Laser method. To effectively compensate the tool electrode wear when tool electrodes with smaller diameters are used or low linear tool wear occurs between the two control intervals, the Laser method should be applied.

• Language: English
• Keywords: micro EDM milling, wear compensation, on-machine measurement (OMM), uncertainty
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: Str. 153-160
• Numbering: Vol. 64
• PID: 20.500.12556/RUL-127112
• UDC: 531.7:621.3.03(045)
• ISSN on article: 1526-6125
• DOI: 10.1016/j.jmapro.2021.01.021
• COBISS.SI-ID: 49498115
• Publication date in RUL: 18.05.2021

Record is a part of a journal

• Title: Journal of manufacturing processes
• Shortened title: J. manuf. process.
• Publisher: Elsevier, Society of Manufacturing Engineers
• ISSN: 1526-6125
• COBISS.SI-ID: 1281557

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: mikro elektroerozijsko dolbenje, kompenzacija obrabe elektrode, meritve na stroju, merilna negotovost

Projects

• Funder: EC - European Commission
• Funding programme: H2020
• Project number: 811040
• Name: Chair Of Micro Process Engineering and TEchnology
• Acronym: COMPETE

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0248
• Name: Inovativni izdelovalni sistemi in procesi